where \(\rho \)  is the DM density profile and it is integrated over the line of sight (los) and \(\Omega \)  is the solid angleDefined as \(\Delta \Omega =2\pi sin\theta d\theta \) .. Different DM density profiles have been formulated and one of the most corroborated ones is the so-called "generalized" NFW profile  [1]}. It is a five-parameter profile characterizing cold dark matter halos identified in N-body numerical simulations. We adopted this DM profile for this work.
